Oh Soon Nam is a teacher at a traditional Korean school called Jeokhyeonjae where she nurtures students’ aspirations like a friend. But one day, Soon Nam’s life crumbled down with the sudden loss of Jeokhyeonjae and her daughter Joon Yeong. Soon Nam embarks on an investigation to punish the people behind her daughter’s death and finds that she must choose between revenge and values she has lived by all her life. This TV show revolves around a female teacher at a traditional Korean school who is also married to the sole descendant of a head family clan that comes with heavy responsibilities. Then tragedy strikes her, however, in memory of her daughter, she transforms into a person that people admire for her strength and perseverance in the face of adversity.